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stock throttle body size

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Old 09-07-2006, 02:12 PM
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Question stock throttle body size

what mm is it ...and how many CFM would it be ...
Old 09-07-2006, 02:21 PM
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A stock throttle body is listed as a 75mm throttle body. The lip in front of the blade (which you remove while porting) only makes it around a 72.5mm throttle body.
Old 09-07-2006, 02:33 PM
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any idea what cfm that relates to ?????
Old 09-07-2006, 03:52 PM
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Ttt....anyone???
Old 09-07-2006, 04:19 PM
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I have no idea. I even searched and every time somebody started a thread asking the same question, there were no replies.
Old 09-07-2006, 04:43 PM
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The stock 75mm throttle body flows at 798cfm's, a ported 75mm runs 922cfm's.

Last edited by 1slowls1; 09-07-2006 at 04:49 PM.
Old 09-07-2006, 07:09 PM
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Originally Posted by 1slowls1
The stock 75mm throttle body flows at 798cfm's, a ported 75mm runs 922cfm's.
Thanks alot for the info----not a math major..
Old 09-07-2006, 07:12 PM
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welcome
Old 09-07-2006, 07:18 PM
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Question

Originally Posted by 1slowls1
welcome
what muffler are you running...atp ???
Old 09-07-2006, 07:30 PM
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I dont even know if thats the name of the muffler could be A.P.T. it was off my buddys t-type I needed one to quite it down a bit to pass inspection, so its somewhat legal.

the muffler is this tiny 14"long just fit perfect its before the rear end where the loudmouth bullet would have been.
Old 09-07-2006, 08:43 PM
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INTERESTING.............'somewhat legal'....
Old 09-08-2006, 11:58 AM
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well the place where I got my inspection sticker is a friend of mine and he said just throw a muffler on there so its visually there and somewhat legal by quieting it down a bit. But I personally dont think it made much of a difference, but atleast its there and I have a sticker.




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